Hiflofiltro air filters are manufactured to fit the factory air box and are a direct replacement for original equipment filters.
Fits:
Kawasaki ZX900 C1,C2 (ZX-9R) 1998 to 1999,
Kawasaki ZX900 E1,E2 (ZX-9R) 2000 to 2001,
Kawasaki ZX900 F1,F2 Ninja (ZX-9R) 2002 to 2003